Extech Instruments 445815 Gebrauchsanweisung Seite 2

User's
INSTRUMENTS
l Mode 445815Humidity
Humidity Indicator with Dew Point and Programmable Hi/Lo %RH Alarms
Introduction
Congratulatio ns onyour p urchase ofExtech's H umidity Alert I IRemote P robe
Hygro- Thermometer. Humidity alarms w arn when the%RH exceeds a pre-set HI
or LOlimit.Theremote probeconveniently m ounts onthemeter or extends for
ts measuremen inducts orremote locations. Italsofeatures Humidity and
re Temperatu . adjustments Theunitcanbewall-mounted
e surfac using thefold-out stand. T his professional meter, with proper c are, w ill
e provid yearsofsafereliableservice.
Meter Description
Temperature- Humidity Sensor
Display
2.
DewPointDisplay
3.
Temperature D isplay
4.
5. LED alarm 4
6. MaWMinpush button
5
7. Reset pushbutton
Senso r cable storage
8.
9. Titt stand
10. Humidity calibration adjust
11. e Temperatur units switch CFPC)
12. e Temperatur calibration adjust
13, 9
Wallhanger
14. Batterycompartment
15. AudibleAlarm ON/Oftswitch
10
Cautions
• Thisdeviceisnota toyandmustnotreachchildren's hands. It contains
hazardous o bjects aswellassmallpartsthatthechildren could swallow. I n
e cas achild swallow s any otthem, ptease contact aphysician
• Donot l eave b atterie s and packing material lying around mattended;
canbedangerou s forchildren i ftheyusethem astoys
• Incas e thedevice i sgoing t obeunused foranextended period oftime.
e remov thebatteries toprevent them from training
• Expired or damaged batteries cancausecauterization o ncontactwith the
. skin Always. therefore, usesuitable h and gloves insuch cases
• Seethatthebatteries arenotshort-circuited. Donotthrow batteries i ntothe
fire.
Copyrig ht 02005 Extech I nstrument s Corporation. Allrights r eserved including
theright o freproduction inwhole orinpartinany form.
wvm.extech c
V3.2 12/05
Guide
Alert II
Operation
Preparation for use
Open t hebattery compartment
instrument downward asindicated
stripandtheprotective filmcover cntheLCD display.
crplaced onaflat
Temperature Units
Select QF orPC units using therear s election switch.
Audible alarm
Select or thetearselection switch totumtheaudible alarm onor
Maximum / Minimum display
2
I. Press t heMAWMtN b utton. Thehighest value measured since theReset
button w as last p ressed appears onthedisplay.
2. Press t heMAXIMIN b utton again tocfisp!ay thelowest value measured since
the Reset b uttonwaslastpressed
3. Press the MAXIMIN button again toretum tonormal display operation.
Resetting(clearing)the MAXIMIN memory
11 13
1. PresstheMAWMJN b uttontoentortheMAXIMIN mode.
2. Press a nd hold theRESET b utton f or1second toclear t hememory and
irr
startrecording newmaxfmin values.
Setting the %RH Alarm Limits.
1. Simultaneously Press andHOLD theMAXIMIN a ndRESET button u ntil " HI"
14
andthestored Hi%RH limit a ppears flashing.
2. Press t heRESET b utton t osetthe Hi%RH limit. Hold thebutton i nforrapid
12
adjustment.
3. Press t heMax/Min button. "1-0' and the stored L O%RH limit w ill a ppear
flashing
immediately 4. Pressthe RESET buttontosettheLO
they
5. Press theMaxJMin button totumonoroffthealarm. T healarm icon
appearinthe display whenthealarm isactive.
6. Press a nd hold theRESET button t osave t hesettings and exit t hemode.
Alert
If %RH exceeds the HIlimitorgoesbebwtheLOlimitthealertwillbe
activated. The alert consist of
aflashing red light ( for 60seconds) and anaudible buzzer (for 6 0seconds)
Calibration
RH Calibration
bypushing thecover ontherear o fthe
1. Insert meters s ensorinto asalt r eference bottle o rhumidity chamber. The
bythe arrow. Remove the battery insulating
2. Check thereading a fterI hour.
3. Adjust theRH calibration
Temperature Calibration
I. Place t hesensor inastabilized environment
2. Check thereading a fterI hour.
3. Acoust thetemperature
Battery Replacement
Open t hebattery compartment
instrument
andreplace thecover.
Specifications
limit.
will
Temperature
Humidity
flashing 'ALERT' icons i ntheupper display,
Dew point
Battery
Weight
Dimensbns
Note: Ifsubjected toanelectrostatic discharge themeter m ay
malfunctionand requirethe userto perform a reset.
pr.8i
referenceshouldbe >70% RH.
pot i n%turn increments, waiting for the display to
update after each a djustment, until the reading iswithin t he accuracy
specification.
ofapproximately
calibration potin h turn increments,
display toupdate after e ach aqustment, until thereading iswithin t he
accuracyspecification.
bysfiding t hebattery cover ontherear o fthe
downward asindicated bythearrow. Replace the1
You. a stheenduser, a re bound (Battery o rdinance) to
return a llused b atteries and accumulators; disposal withthe
household garbage is prohibited!
You can hand o ver y our used b atteries / accumulators,
atthe collection points forour b ranches inyour community
wherever batteries / accumulators aresold!
Disposal: Follow thevalid l egal stipulations jnrespect ofthe
disposal ofthe device a ttheend ofitslifecycle
Range
Accuracy
-10t060:C
± within to
14 ± 1.8* within
to
± RH within
50:C or 32 to 1220F
.36 to +1-200.@200C
-32.8 to 140*
@ 680F
(2) 1.5V cell
6oz (1699)
Display: 433.9xo.8" (109x99x20mm)
Probe: 0.57" (14.4mm) Dia.: 1 .6T(42.4mm) L
Cable length 1 8"(457mm)
21 oc.
waiting f orthe
'AAA' batteries
gratuitously,
or
to RH and Oto